Sole rounding or trimming and channeling machine



April 29, 1930. M. "r. DENNE 1,756,116

SOLE ROUNDING OR TRIMMING AND CHANNELING MACHINE Filed June 8, 1925 4 Sheets-Sheet l 96 .94 92 3/ 514- Fig.1.

I MarK T. Denne M. T. DENNE April 29, 1930.

SOLE ROUNDING OR TRIMMING AND CHANNELING MACHINE Filed June 8, 1925 4 Sheets-Sheet 2 MurK T. Denna M. T. DENNE April 29, 1930.

SOLE ROUNDING OR TRIMMING AND CHANNELING MACHINE Filed June 1925 4 Sheets-Sheet //W[/Y7'0/P MarK T. Denne SOLE ROUNDING 0R TRIMMING AND CHANNELING MACHINE M. T. DENNE April 29, 1930.

Filed June 8, 1925 4 Sheets-Sheet 4 v M/Vf/VTOR MqTK T. Denna Patented Apr. 29, 1930 MARK THOMAS DENNE, OF LONDON, ENGLAND SOLE RO'ClN DING OR TRIMMING AND CHANNELING MACHINE Application filed June 8, 1925, Serial, No. 35,542, and in Great Britain June 11, 1924.

This invention has reference. to improvements in and relating to sole edge trimming or trimming and channeling machines Whereby an extension edge may be produced and in which latter machines the channel knife is automatically adjustable so that the channel may be cut further from the sole edge at the shank than at the forepart.

' As heretofore constructed, machines of the V to kind referred to are in several respects seriously defective, the cumulative effect of which is that the machine cannot. be run at the high speed now called for, and the necessary adjustments, of the several parts to adapt the machine for operating on different styles of shoes (Whichterm 'shoesis intended to include boots) are so diiiicult to make that much time is thereby taken up, thus still further militating against a desired high output. s

' The main object of my inventionis to obviate thesedefects, other objects being to im prove individual parts or mechanism of the machine as Will be pointed out.

Machines of the type to Which my invention 'more particularly relates,'includes a work rest, a reciprocating trimming knife, means to feed the work intermittently forward, an adjustable Work guide (or guides) that assists in guiding the work relatively to the plane in which the trimming knife operates, and means whereby the guide may automatically be moved in the direction perpendicular or transverse to said plane. For channeling, there is provided an adjustable channel knife and means connected with the work guiding means so that the said knife will automatically be adjusted to cut the channel further from the sole edge at the shank than atthe fore- 49 part. r

The aforesaid transverse movement of the work guide (usually a last guide) has hereto- 7 fore been a step by step or intermittent move ment (brought about by intermittently rotatinga disc cam that controls the guide) the guide being stationary whilst the trimnnng knife is cutting or still engaged in the sole and being moved only during the comparatively brief periods that said knife is disengaged from the sole.

' mechanism is complicated and delicate.

Such a construction or arrangement itself is seriously defective in several perticulars.

In the first place to produce the intermittent movement of the disc cam, comparatively delicate pawl and ratchet mechanism is pro- 55 vided to rotate intermittently the arbor on which thecam is mounted, and this delicate mechanism is duplicated so that the necessary reverse movement (for right and left shoes) maybe produced. In some cases a friction device is provided so that the pawl and ratchet shall not be subjected to undue strain. Further, as will be pointed out hereinafter, the use of a disc cam, having its periphery formed as'a cam surface, for the purpose stated, also leads to difiiculties at times.

An object of my invention is to obviate these defects.

As a result of experiments and tests carried out under factory conditions I find that taking advantage of the natural elasticity of leather I am enabled to employ means, such as a cam, which imparts constant or continuous movement to the work guide,v so that the guide is moved (according to the shape of the cam) whether the trimming knife is in the work or not.

. This at once considerably simplifies an important part of the machine because the delicate pawl ratchet mechanisms as well as the mechanism to actuate them in timed relation with the reciprocating trimming knife is rendered unnecessary. By this simplification this part of the machine can be made much stronger and may be driven with safety at much higher speed.

To this end therefore my invention consists broadly in a machine of the type referred to in which continual movement is imparted to the work guide for the purpose stated.

A further defect in machines of the type in use concerns the means whereby variations in the shape of the extension edge may be produced.

In one well known machine this is effected by an intermittently rotated disc cam (that controls thework guide) and means whereby the extent or degrees of each small rotary movement may be regulated. The regulating a a highlyskilled. operator ifs-not available and in any event the cost oi producing the shoes considerable expenseand probably delay also.-

in v

, provide fiat plates one edge o i; which is" profile cam and which In another, also Well lrnowminachine, a number of. disc cams of different shapes are mounted on a common arbor (to Winch inter mittent rotary movement is imparted as de-' quantity (perhaps adozen pairs) of shoes,

the'eateiision ede or the soles of which are ofa specialshape which cannot be produced by the useo-iithedisc cams su'pp'lied with the machine. v I 4 Only a very skilled operator would be able to produce a pair or may be two pairsof shoes by moving the Work guide manually so tliatthecorrect'shape is-giv'ento all he soles,

To" produce} a dozen pairs that manner, all

the twenty fou'r sol'c's'oi which are perfectly matched, would bebeyond the power prob ably of the-most skilled workman. 7 Further,

there are many shoe factories inwl'i ich such would be increased considerably.

The only alternative-is: to have a: disc cam of appropriate shapespecially designed and made so that it can be substituted for one ofthose' oiithe cam arbor. This again means It will therefore be realizedthat if these defectscan be overcome an important ad-' Vance Willhave been made both'asregards avoiding an appreciable increase in the costof production and in'lossoi time producing the shoes and'the provision ofme'an-swhereby this 'difiiculty may be obviated is-anotherob jeet oi my invention,

To this end I d spense altogether With the;

use of disccams for the purpose stated and shaped-asapattern or V plates are supported and moved sothat their shaped'edge controls the W'orkgtt1de.'-

' The shape given to said edge will be similar OY GPPIOXiIfiELfiG to that of the extension edge that Willbe produced byits use and iii-the camjor profile-d portion extends above the median lineiottl-ie plate there may be a line, or lines representing the side 0% the'last so that the operator can at once scewhat shape.

of extension edge he can produeeby it.

will be a number oi suc'h pattern cam plates supplied' with the machine-and these war preferably be made ofrnetat Should I the shoe" iaa ufactarei receive 1 an ordei foi'l a small quantity" ofsho'e's tle soles of which are to have a special shape, a pattern cam made of Wood, preferably hard Wood, would be quite serviceable and this could be fashioned by any reasonably intelligent workman. The suppliers of the machine could at very small cost supply a number of such hard woo d pattern cam-s, thzeshaped edges of which left sufficiently "full to' permit the workman by filing, raspin'g, or other means, sto malre thenecessary alterations and thi'is quickly fashion the edge to the desired form,

7 By these means considerable time and FDQHBY H1QT saved and the-outpntof the machine maintained. i

r A further'serious defect in machines o l 'the typereferred to (when provided Withcha nneli-n-g means) asheretoitore constructed is thatneither the p '"e'cise or exact adjustment of the channel knifeto positionthis rela 1 tivelyto the planeqof operation or thetrim-a ming knife,- nor the precise-or ex'ac'tgadjustinent of the automa means whereby adjust: otthe' channelknife relativeto said plane may readily be: efiect'ed duringthe op eration of the I h V x A iu-rtherobj ect therefore of'my'invention is to obviate these defects andlto'this'end'my invention consists in coupling or linking up? the ad' ustablechannel hnifei with apart that r is readily accessible for adjustment and by the: adjustment osfi Whichtheposition of the channel knife is regulated and byi tl re automatic KflO'YIhBnt Of which position of the said knife may ming operation,

' The foregoinggenerally describethe: main featu res ofmy invention as afiectiiig the prim cipal mechanisms of the'machin e;

Certainother-features-to be described hereinafter, including among others'the means for supporting and adjusting" the forepart guide the means' for supportingfand moving the pattern earn {the means for reversing the'move'ment of the pattern cam yand. other devices and mechanisms also, conspire to the attainmentof the objects or at leastlthe main i 1 of my invention;

Zlhepreferred constructional form to be described of the complete machine also forms an important feature of myinvention.

The preferred constructional form ofmy invention is illustrated in the accompanying drawings in -Which Fig. 1 is a front elevation of the complete machine drawn to a comparatively small scale; Eig.-2 is a front elevation and Fig. '8 a sideelevatio11.1o fi the head of the machine and themechani-sm carried by it; Fig. isa section'on'. line (IF-Dof'Fig; 3; and Figs. 4,5,7,8, 9, 10, and--11, illustrate details to be referred to. x '7 be changed during. the trim.--

ice

' In said drawings the numeral 1 indicates Y the machine head whichrristmounted on astandard' 2'in the: usual manner. The head is provided with ball thrust journalbearings 3 that support a cam shaft 4 on one end of which the usual fast and loose belt pulleys 5 and 6 are carried and whereby the machine may be driven from a suitable source of power. The cam shaft 4 is supported so that'it isperpendicular-with respect tothe direction of the work feed movement, the

' parted to the various mechanismsto be described.

shaft which heretofore has been found necessary' to carry, in some machines, a number isnioved longitudinally to a slight e tent at the ,"appropriate 'moments this being efof cam discs by one or other of which the forepart guide is to beautomatically intermittently actuated,- and therefore the rather compleXmeans whereby the said additionalcamshaft maybe adjusted to bring the required cam disc into'operative position and to retain it in adjusted postion and then in- I termittently rotate it, are also dispensedwith.

' Ona' suitable bearing 12 I provide a horizontal frame 13 that contains a bar 14'of preferably rectangular section. The barat itsfront endis'provided with a depending abutment 1 5 on which is secured a copper or other suitable plate 16 to serve as a cutting block. Thisdepending'abutment is located 'within' and'projects through a crease guide 17 of about usualconstruction, and the bar fe'ctedby the cam groove 8 which is engaged bya cam roll 18 on. a stud 19 secured to the barso as to be clear of the work when this is being fed along. As the cutter block must not yield, for thereason stated, when the edge trimming knife is in operation, the depending abutment and its support referred to must be made verystrong and the construction hereinafter to be described of the for epart guide enables this to be done within a m nimum space. I

The frame 13 referred to 18 adapted to be rocked so that the abutment 15 moves to feed forward the work (acting for this purpose in conjunction with the channeling knife and its support, as will be described), and'for this purpose (see Figs. 3 and 4) I provide a cam roll 20 that engages in the camTgroove 10 and which is carr ed by a stud 21 on'a sliding bar 22.1nov1ng 1n guides 23 in the main frame or head and connected end a sole edge trimming knife 28 there being 7 also provided the usual vertical chisel or like member 29 that engages in the trimmed off part of the sole to assist in holding the shoe whilst the channel knife operates. The bar is provided with a stud 30 carrying a cam roll 31 to engage a cam race 9 in the drum and by which reciprocating movement, in timed relation with the work feed, is imparted. I

"Below the bar 27 carrying the edge trimming knife is provided (Figs. 2, 3 and 5) a I horizontally slidablemember 32 which is pro- In my machine there is no addit1onal cam I vided at its front end with vertical slideways 33 onwhieh fits a slidable channel knife holder 34, the knife 35 being clamped to the holder by any suitable means. The slidable member is rocked at the proper times so that the channel knife will assist in feeding forward the work. This is attained by the bar 32 being received in a bearing on a block32 that is secured to the vertical spindle 12, the arrangement being such that the channeling knife is free to be moved towards and from the shoe but is compelled to move in the direction of work feed movement together with the abutment 15 by reason of theblock 32 being secured to the spindle12 by which lateral rocking movement is imparted to the bar 14 that carries the abutment 15.

The horizontally slidable member is normally pressed forward by means of two long springs 36, 37 so that they press the knife holder and the channel knife against the;

work, the long springs being employed so that apractically equal pressure will be exerted notwithstanding variations in the thickness of the work. By the use of these long springs the fairly complicated mechanism heretofore provided in machines of the class referred to, to obtain substantial equality of pressure as aforesaid, is dispensed with.

To move'the said member (and with it the channelknife) rear-wards, it is provided with a block 38 to receive the cylindrical end of a substantially vertical rocking lever 39 the lower end of which is connected by a link 40 to one arm of a bell crank lever 41 the other arm of which is acted on by a treadle controlled spring-pressed push rod 42, the arrangement being such that, when the treadle is depressed, the knife and its support are moved rearwardly to permit insertion or removal of the work.

To enable the workman readily to adjust the channel knife up or down so that he may determine the distance from the edge of the sole'at which the channel is to be cut, and to effeetthe automatic adjustment of the knife so that the channel will be cut nearer to the edge around the forepart than in the shank, and to enable the automatic adjustment to bring about a variation from nil to the maximum, I provide the following:

' lower on i 'lheii tertieadilyshdoblechasrnzeislmifieholdier nested to, it a: link-43$ whliohg, at its connoteted" to: one arm of -21 bell.

34 has-c crank lever L4, other arln oi .Whnc-h en- :gages' a; hloohetfia on'the end. ot a: horizontally slidnblie bearingoi" trunk-z 41-6,,- az simile'li trrunk 4'7: beingrshdabiy supported in ahgnlnent w th the trunk 46;;

V 'Ehesecond trunk @Fhzusa bearingzi) that supports the trunnions of a rocking lever IQ-8 the f P ;t: end? oi which is: adjhstab-Iy iconnect-ed orag slit "bearing 50115) means: ofi fits 061E951; fTEhe: slidehe'ztring, comprises:

I angle from the verticoI too. predetermin d: inzmimnminchnatiom The other' end of the rocking" fever- 48 is onemgedby means of a slide hearing 52, or

" dog' -soothe ineadle rod'53 ot'ajse-cond' treadle lever (and by which, as W'IHJbe; descri'hed tlne for-spa rt guide is to some extent contr oiled) (town as i he 7 may desirej X isin operation; tl'teedj'ustmentof the'chan net knife 3:5: will be- 'eutom'miicazhy:v efieeted' ifthe slide casing 50 haswbeen set at angle oftho knife will" depend; uponjheidegree of,

and

the adj ustment of the channel-knife upor 'Jhen the machine tot-he vertical; 2 nd. the amount 2 of movement angular adjustment; of; the slide" casing If thisi atte'i" is adjusted inith-e: vertical; (or p-sacgticaz kni'if e: W

Vertical) positiompthe ehannela can; thus muse theknife toicut at'ai predeternormed eqiml' distance fifiomf he'edg'e? oi the: sole mound the; forepart and theshank (which:- lusty be desirable forsome classes 0'--s11=O-eS- or he; may cause the channel: to be cut iieggreater, distance at. the: two sides of the she-n1: than around the foreportand he can determine the-extent. or degree of'd-ifferf once lil'la the distance from: the edgeofi the sole at the'sliank and the forep'amtatwhich thechannelzistobe: cut. v t The forepart guide; 56 preferably consistsof a, metal bladethat is bent into, a more or less arcuztte term: and is: supported wrocls in arner 5? that has trunmons; 58 orthei line supported in hearings in the -frame orhe aid; of the machine; I. The a blade; isarranged so that it may" be adjusted relatively to the riot according to: the: minimum W'lidl; de-' s ed o the proj-eetinggedge of thesole, and it is 'heid adjusted posltfiomby suitable inea ns; {prefer to provide for this" purposes; 012111 59 that engages; teeth-BQ whicharev cntat one part .t the: blade: 56: constituting i the foisepart' gold so; that when the orkin n -hy; notting the b v anent by the WQTIiiz;

worm; hasadjnsted the:

' mite latter 7. rte-1mm aga-insti'moves thaztis adjustahly secured at 'any" he bearing supporting theilioolsing lever is adjustable by ascrew 5'5provided :w-ith a heind nu t 54-, the, arrangement, being; Such} that when the orkman turns the sore-W "in 1 one or other direct-ioml he" wih bring" about 1. e held stationary; I Thewworkmon A For the purpose: of imparting automatic movement tothe foi'eport guide-whenthe extension edge isito-he produoed,l employ a cent or; profilestrip- 61 herring one edge of appropriate sha peaaswjwiltbe-de V I scribed, and which strip Isec1i-re-toa boa-1'.-

62 that is ski-doable transversely ofi'thei move up or c iown so lon og 'as the roll ishel'd can 5 ip iii-one direction will produ'eea direction" will: be appropriate for; thoother. shoe oi a pair;

The contour of the".ex\tension eollgte, isoafi C0111S6 det611n1116d: hy-the shape of the -profile cam strip" for the time being in the machine, I

and. therefore I propose; to provide; each machine with aset of can or profile strips: so thatsny one or other of the various-shapes i ofextension edge usuall ydemanded nlay;

be, produced by .n1ere1yp1;tein g in position.- the appropriatestrip. These strips may be.

made: of metal or even- 01% iharctwood and therefore they can be producedq uite. d ly i prov de himselfi with a stripof specialjorm" sogthztt' shoemanufacturer may should. he receiveen. order for shoes with It'- is very desirable thatthe. stripsmay he quiekly' applied and removed encl forthjs purpose '1 form; each strip near eachend with an QPQI-tfllfi end-l provide the beering with ape-1r ofist-uds 65-to fit these so .that the. work man. cam as it were, dropv the strip ongto the st -rds, and. these latter will securely hold; the

strip; Whilst therbearing is moving transversely of the machine. 7 i

The carrier, 57 on which the forepart guide is mounted is aeted, on by a, spningfifi that tends to move: or'rook it so that normally the forepart guide and: its support are; wel out of the wayenabling the workinantohave a clear View of the Work gripping; Inen'1hers..- This: will be the position of the guide when the waist o-if' the shoe is beingtrimmectandiwhen theshoe 1s being insertedl machine.

To bring the forepart guide intor ention- I provide atre'adl'e, the r0d53 ofwhich is connected to one a-rIn-of a suitably sup'p'ortedTb'eH' crank lever 67.,ithe other arin" of hichis connected. to, a rodl68, that has a slide- 69 on Which an antifricti'on rolLZ O is: Inounted and? which;

when the tre'a dle is? depressedpis. forced ageinst a: cam surface H with which]; pr oa t the co nstrip. The movementofthe of the" forepart guide, suited to produce the extension edge? on the sole ozfii: one shoe, and the. movement 1I-1; hh80PPOS1ftQ i'npo'sition in the on i 'anunusual shape or iormoffflextensipn vide the carrier 57 and whereby the latter will be rocked.

The transversely slidable carriage 62, on

which the cam plate '61 is supported, is put into action'by the operators depressing a knob or button 72 (Figs. 1, 9 and 10), the position of which may be such that the operator may effect this depression with his knee and thus leave both his hands free to manipulate the shoe. The depression of the knob operates gearing, comprising a rack 73,

toothed wheels 74, and a second rack 7 5 on the lower end of a vertical rod 75 andthis,

acting through a tumbler 76 causes a worm '77, to be driven by one or other of two gears 78, 79 that rotate in relatively opposite directions, and which worm directly, or through the intermediary of toothed gears 80, 81, 82,

imparts movement to the carriage .62.

Supported in suitable bearings are two sleeves 83, 84, on which crown wheels 85, 86,

are respectively fixed andwhich two crown wheels aredriven in relatively opposite direc- "tions by crown pinions 78, 79, deriving rotary motion from a constantly driven spindle 87, through suitable gears 88, 89, 90. Hit be desired tov stop the rotary movement of thecrown wheels, the gear wheel 89 on the spindle 87 is moved longitudinally thereon to disconmally drives, and this disconnection may be nect it from the two pinions 88, 90, it noreflected automatically when the forepart guide is moved out of action, for instance by and crank ferredto) is. the worm 77 that is compelled to rotate with thespindle although the latter, 7 for the purposestated, may be moved in the axial direction without carrying the wornr with it, the arrangement being such that if the spindle 93 be moved-axially in one direc 1 tion the worm will be'rotated clockwise by the connection of the clutch members 92 and 94, and anti-clockwiseby the connect-ion of the clutch members 91 and 94, if the spindle be movedin the other direction.

For imparting'movement to the spindle 93 in the axial direction, I provide a suitably supported slidable'"ro'd'95 having arms 96,

97 that project in proximityto theends of the spindle 93, and saidjrod 95 has a block 98 formed with a preferably V-shaped recess,

99"(Fig. 7), in which a roll 100, acted on by a ka s'pring 101, engages, and which roll normally serves to-maintain'the rod '95 in the central position. Pressing on said block 98 is a spring pressed rod 102 that has a snug 103 which will engage in one or other of two recesses 104, 105, in said block so as to retain the rod in one or other extreme position (and thus maintain the clutch members 92, 94, or 91, 94 in gear) when it has been so moved. If said spring pressed rod 102 be raised to disengage the snug 103 from the recess 104 or 105, the spring pressed roll will at once move the sliding rod 95 to its central position and thereby throw the clutch members out of engagement.

The foregoing is provided so that the operator need not hold the knob or button 72 depressed as a mere momentary depression thereof will cause the temporary locking of the parts as described.

When the worm 77 is thus rotated it moves the profile or cam strip supporting carriage 62 in'one direction until one or other of two dogs 106, 107, comes into engagement with acentral wedge block 108 on said rod 102 and which wedge'device throws the locking means out of action.

The next depression of the knob or button so operates the connecting and locking means that the worm will be rotated so as to move the carriage in the opposite direction.

The means whereby successive depressions of the knob will bring about a rotation in relatively opposite directions of the worm for the purpose stated, preferably comprise a rocking block 109 (Figs. 9 and 10) to which the sliding rod 95 is connected and'which block has extensions between which and the lugs 114, 115, on the tumbler 76 referred to,

slidable studs 111, 110, are provided so that when the tumbler 76 is rocked it will, acting through one or other of the studs, rock the block 109 referred to and thus bring into action one or other of the arms 96, 97, on the sliding rod 95.

The tumbler 76 is acted on by a spring plunger 112 having inclined surfaces at its end adapted to engage oneor other of similar surfaces on the tumbler, the plunger also acting as a brake. The tumbler 76 is moved or rocked, when the button 72 is depressed,

by a spring finger 113 which rides up one or other sides of the more or less V-sha-ped lower part of the tumbler until it engages one or other of the lugs or shoulders 114, 115, thereon and thereupon further movement of the finger will rock the tumbler.

position and is again raised, it will ride up the other inclined surface or side of the tumbler 76 and eventually rock this in the opposite direction. 7 v

' When the tumbler 76 is rocked (in either direction) the spring plunger 112' will yield, thus allowing the tumbler to push the slidable rod (110 or 111) to swing the rocking block and will then return a slight-distance so that 7 When the "spring finger 113 has returned to its normal "the slidable rod does not offer any obstruction.

or resistanee'to the return of the red to its central or inoperative posit-ion whilst periinittingthe tu-rnbler'to remain with the detent holding it in correct position for assuring that {the spring finger Wll-l engage With the opposite engularly disposed face or surface engages a slot in said disc.

L I V'Tliernode {of operation is as follows The operator j-first adgusts the edge trimnring knife 28 toensure that 1t eontaotswhrnil y withthe cutting "block When in its most torwardposition. *He then-edj uststhe crease guide 17 according to the minimum Widfih of the projection soleedge hedesi-res. Then, by turning-the knoh 54 he ad iusts the position vertica l -ly of the channeling "knife accordingto the distance from th sole edge at which the :ohennel is to be cut at the Waist 'otitheshoe and finally, by aneans of the .hand znut on'sthe spindle of the Worm 59, he adthe fonepert guide :end he places 53,11 appropniete profile plate 61 on the :eerrisge 62 where it is held against movement zby vthe pins .or studs 65. r

The operator then starts the machine, and

'he depresses the treedle onrod 42 whereby thewchannel hnitfe is moved to arts lQhfiHl'OSt :nosition and then he inserts the shoe iby holding this with its sole 'VQI'tICELl rand novging zit :up against the guide 17, the guide entering the crease or angle termed @biy v the sole end the upper. He WllL UlIUSfYEH-ISGH C the pant otthe shoe (at one or other Waist) Where {the tninnning endchenne'ling knife-ere -.to cennnence end he wvill'releaseithe tree'dle rod 412 when the ichanneling knife will :at once engage end-out into the sole, it being pressed thereagninst :lo the springs fi, 3:7. 7

The trimming lmite will trim the margin of 5 1825016 end-the channel knife Will, 1111 eddi- .1-tion to cutting the i chennehfeed the shoe,

noting for this purpose in \c'onjunction with the rocking inoyeinentof the loloeh l5.

When theend of the Waist is {about or neairl-yi reached,the operetor will depress the appropriate ,treadle to raise vthe'ztreadle rod 7 53. will bring the Work guide 356 epainst the shoe and, simultaneously, the-cam l- Q t QL th rents the operator @11 skinless", e"

7 ot the clutch vinenibers -94 -\w i;11 i

. mserie engage with the reletive clutch members 91 or 92 and thus set the Worm W'motatingF "The Worm, through the geeringe lready c'lesonibed, moves the carriage-62 end with it the profile cam Eloy which letter the extent and direction of movement of the work guide '56lisdetermined. By :these means the swell or "thing-re on thesole edge is produced. Wlzxen the roarriage 62 :reaohesthe end of its movement, one or either of the wedge .blooks 1106 107;,--xvil1:engege the part l08iand will withdraw the part 103 from the :notch 416401 105 thereby allowing the spring 101 to 1 bring the cl ut-ch members to [their neutralpositien.

The foregoing will Joe lsuitailole fior oper- -sting-0171oneshoe of'a pztiixlUhent-heother shoe is to be operated -,on vthe @penetor pironeeds its heifers but when he depresses the button 72 the-other olutoh member (911, 92)

than previously engaged will he set in operation and the caninge "62 s oved 111 the opposite direction. 7 p V lithe channel Is being out too near or too far from the ledge ofthe sole at the forepzu-t the-operator adjustin'githe slide casing .50

- meyenttke the necessary correction.

Claimsz- .1. A machine of the type c lesoribed,;ihaving a Work snp po iaetrimming fkniie, .ineensto reciprocate sat wo k intermittently in the plane of operi' lo vthe trimming knife, a we; guide.

the plane of-operation of-sdidfknife,.a profile 13l85l36,'111&11$ to impart continual movement -to said ol-ate, onda moyzibleworkgu-ide controlled in its n'iovelnent by said profile plate. '3. A meo'h ine as deemed in cln'i'm 1-2, and l-1183118 to impart the continual movement to :the profile plate in one direction when one shoe of e paiir is operated-on 1 and in the oppo si'te direction when the other shoe is operated on. r

4:. Ammchine-of the ty pe desori bedfhaving on work support, b 5016 edge trimming lmife,

eneans sto i eci-prooete said knife, 11 Work feed mechanismito steed-the :Wor'k intermittently in e :the :plane of: op erzttionrof*theftrimming filmi fe 2a awonkiguide, profile rptlate to determine the position of sand .rguide, ineans put in a-ction thy ithe operator o i et hyseidwr tuut imevethe :nrofile'a lete,

end d W 9i ontinually when g iknfi'fe, means to anove the I gimpart'rcontinualmoveimentrtoszndiplnte, andertlemce automatically itjhlzeiuing 5636' last r gfierned ztoimean :out er 6. A machine of the type described having a work support, a channeling knife, means to move the knife from and towards the work,

' means to effect the automatic adjustment of said knife during the operation of the machine, and means under the control of the operator whereby, during the operation of the machine, the said automatic adjustment may be varied for different styles of shoes.

7. A machine of the type described having a work support, a channeling knife, a trimming knife, a work feed mechanism, a profile plate to determine the position of. the work relative to the knives, and means controlled by a treadle and said profile cam plate and adjustable during the operation of the machine to move the work and simultaneously the channel knife.

8. A machine as claimed in claim 7 in which is provided a mechanism comprising a slidable member 46 linked up with the channeling knife, a second slidable member 47 having a bearing 19, a rocking lever 48 sup ported in said bearing andconnected at one end to the slidable member 46, and a screw device for'adjusting the knife during the operation of the machine.

9. A machine of the type described having a work support, a knife to operate on the work, means to feed the work, a movable work guide, a profile plate to determine the posi tion of said guide, a carriage arranged for sliding movement to support said plate,

means under the control of the workman to determine the direction of movement of said carriage, and means supported by the carriage automatically to throw out of action the carriage moving means.

10. A machine of the type described having a work support, a knife to operate on the work, work feed mechanism, a movable work guide, a profile plate to control the movement of the guide, a constantly rotating spindle, a worm, means connecting the worm with the profile plate, crown wheels driven in relatively opposite directions by said spindle, means under the control of the operator whereby either one of the crown wheels may be made operative to rotate the worm, and means movable with the profile plate to throw the worm out of action.

11. For a machine of the type described, in combination, a work support, a trimming knife, a channeling knife, means co-operating with the channeling knife to feed forward the work, a carriage arranged for movement in a plane parallel to the work feed movement,a work guide arranged to be put into action by the operator and movable in a plane perpendicular to the first plane, and a pattern cam on said carriage to control the movement of the guide.

'12. A machine of the type described having a work support, a trimming knife, a channeling knife, means to feed foI-iward the Work,

an adjustable work guide, a carrier for said guide, a cam roll on'said carrier, a profile plate to be engaged by said roll, and means to impart continual movement in a rectilinear path to said plate.

- 13. or a channeling machine, in combination, a work support, a'channeling knife, a slidable member 'operatively connected with said knife, a slide casingadjustably'secured to said member, and connections to the casing arranged for actuation by the operator to vary the position of said knife. I

1 1. For a channeling machine, in combination, a work support, a channeling knife, a slide member operatively connected with the channeling knife, and means comprising a slide casing, supported for angular adjustment by said member, and an operating member, engaged with said slide casing, by opera tion of which the knife is moved a distance dependent upon the angular adjustment of the slide casing.

15. A machine of the type described havinga work support, a sole edge trimming knife, means to impart reciprocating movement to said knife, a work guide movable in either direction relatively to the plane of movement of said knife, and a profile plate movable in a rectilinear path in one direction to cause said guide to be moved first in one and then in the opposite direction during such rectilinear movement.

16. For a machine of the type described, a work support, a knife holder, a channeling knife mounted on said holder, a slidable menr ber, connectionsbetween said member and said holder, automatic means to impart movement to said member, and means to adjust said member independently of the means whereby its automatic movement is effected.

17. For a machine of the type described, a work support, a knife holder, a channeling knife mounted on said holder, a slidable member, connections between said member and said holder, an adjustable slide bearing mounted on said member, a rocking lever one end of which is slidable in said bearing, and automatic means to rock said lever.

18. For a machine of the type described, a work support, a trimming knife, work feed mechanism, an adjustable work guide, a profile cam plate to control the position of said guide, a slidable carriage to support said plate, means to position and hold said plate on the carriage, mechanism to impart movement to said carriage, two oppositely continually driven members, and means under the control of the operator whereby he may operatively connect either of said members to said mechanism.

19; For a machine of the type described, a work support, a trimming knife, work feed mechanism, an adjustable work guide, a proguide, a slidable carriage to other members rotating in guellatiazely p-pposii e radim ti ns', humm r, za oc ng bl mm 1 by =sai1 iumb i, cemeqt ws b tw sai lblok and zaaid "spindle a-nd t n9Qk-$a e wn e MAB-1i 

